Employee Well-Being and Mental Health: Determinants of Workplace Productivity in the Contemporary Economy

Well-being and mental health of employees have become significant contributors to productivity in today’s global economy. Failing employee engagement, burnout, and the huge lost economics of low productivity are important business concerns. This study examines relationships between well-being, mental health, and performance. A qualitative secondary analysis of secondary data from Google Scholar, SSRN, PubMed, and ScienceDirect is conducted, along with a review of major reports from Gallup, World Health Organization, National Alliance on Mental Illness, and McKinsey & Company. Key theories used to understand employee well-being and its impact on work performance include Job Demands–Resources, Self-Determination Theory, and Conservation of Resources Theory. Employees missing work due to illness is a significant factor in lost productivity, with studies indicating annual lost productivity of around $600 billion in the U.S. alone due to presenteeism (47% of the global workforce is affected by presenteeism) and motivational withdrawal (around $438 billion in global lost productivity due to worker disengagement by 2024, Gallup, 2025). However, the evidence is clear that the crisis is driven by more fundamental organisational issues including poor quality management, unsafe psychological environments, and toxic cultures. Importantly, there is strong evidence that well-designed well-being interventions have a return on investment of 4:1 or more. This paper sets out recommendations for organisational leaders, human resources specialists, and public policymakers based on the existing evidence. Manager development, psychological safety, a broader perspective on measuring well-being, and an integrated approach to supporting mental health are identified as the highest-return organisational interventions to tackle the well-being and productivity challenge.

Employee well-being, mental health, workplace productivity, burnout, psychological safety

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